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NAVIGATION SYSTEM AV-123 C D E F G H I J L M A B AV 2006 Pathfinder Vehicle Speed Signal Check for NAVI Control Unit EKS00HKI 1. CHECK HARNESS 1. Turn ignition switch OFF. 2. Disconnect NAVI control unit connector B152, combination 3. Check continuity between NAVI control unit harness connector 4. Check continuity between NAVI control unit harness connector OK or NG OK >> GO TO 2. NG >> Repair harness. 2. CHECK 1: VEHICLE SPEED SIGNAL 1. Connect NAVI control unit connector. 2. Turn ignition switch ON. 3. Check voltage between NAVI control unit harness connector OK or NG OK >> GO TO 3. NG >> Replace NAVI control unit. Refer to 3. CHECK 2: VEHICLE SPEED SIGNAL 1. Connect combination meter connector and display control unit 2. Drive vehicle at a constant speed. 3. Check signal between NAVI control unit harness connector OK or NG OK >> Replace NAVI control unit. Refer to NG >> Check combination meter system. Refer to DI-21, "Vehicle Speed Signal Inspection" Continuity should exist. Continuity should not exist. WKIA4445E Approx. 3.5V or more WKIA4209E 66 - Ground : Refer to and Reference Value for NAVI WKIA4210E |